Diamondbacks placed RHP Josh Collmenter on the 15-day disabled list, retroactive to August 9, with ulcers. No word on the severity of the issue or a timeline for his return. Collmenter has a 4.24 ERA and and 69/18 K/BB ratio over 74 1/3 innings this season as a starter and reliever. The Diamondbacks have recalled right-hander Brad Bergesen from Triple-A Reno in a corresponding roster move.